| Patents for G01S 1 - Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith (15,825) |
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| 02/23/2000 | EP0980531A1 A cellular positioning system that compensates for received signal delays in positioning radio receivers |
| 02/22/2000 | US6028887 Power efficient receiver |
| 02/22/2000 | US6028883 Low power signal processing for spread spectrum receivers |
| 02/17/2000 | WO2000008886A1 Improvements in downlink observed time difference measurements |
| 02/17/2000 | DE19836966A1 Verfahren und Datenempfänger zum Empfang von Korrekturdaten enthaltenden Funksignalen für ein Global Navigation Satellite System Procedures and data receiver for receiving radio signals containing correction data for a Global Navigation Satellite System |
| 02/15/2000 | US6026304 Radio transmitter location finding for wireless communication network services and management |
| 02/10/2000 | WO2000007034A1 Method and apparatus for angle measurement or to define angular location of an object |
| 02/10/2000 | WO1999063360A3 Distance tracking device using global positioning system signals |
| 02/09/2000 | EP0978000A1 Increased jamming immunity by optimizing processing gain for gps/ins systems |
| 02/08/2000 | US6023489 Method and apparatus for code synchronization in a global positioning system receiver |
| 02/03/2000 | WO2000005741A1 Multiple-channel digital receiver for global positioning system |
| 02/02/2000 | EP0975989A1 A navigation/guidance system for a land-based vehicle |
| 02/01/2000 | US6021156 Apparatus and method for improving signal-to-jamming ratio in a spread spectrum receiver |
| 02/01/2000 | US6020846 Global positioning system employing clocks only model |
| 01/27/2000 | WO2000004402A1 Gps signal fault isolation monitor |
| 01/27/2000 | WO2000004400A1 Gps satellite drift monitor |
| 01/26/2000 | EP0974063A1 Method for checking the reliability of nominal position indications |
| 01/25/2000 | US6018818 High level testing to test and recover the damaged differential corrections |
| 01/25/2000 | US6018784 PCI card for receiving a GPS signal |
| 01/25/2000 | US6018704 GPS receiver |
| 01/25/2000 | US6018314 Method for obtaining PPS accuracy using an unclassified GPS receiver measurement interface |
| 01/25/2000 | US6018313 System for determining the location of mobile objects |
| 01/25/2000 | US6018312 Locating the source of an unknown signal |
| 01/19/2000 | EP0972209A1 Locating device for vehicles |
| 01/18/2000 | US6016121 Multiple frequency GPS receive operation using single frequency sequencing |
| 01/18/2000 | US6016119 Method and apparatus for determining the location of an object which may have an obstructed view of the sky |
| 01/18/2000 | US6016117 Method for the efficient determination of GPS satellite orbital position |
| 01/11/2000 | US6014404 Procedure for the independent reduction of acquisition thresholds and tracking of spread spectrum codes received in orbit |
| 01/11/2000 | US6014102 Method and apparatus for calibrating location finding equipment within a communication system |
| 01/05/2000 | CN2357335Y Satellite positioning anti-theft device based on public communication network |
| 01/04/2000 | US6011509 Apparatus and method for determination of a receiver position |
| 12/28/1999 | US6009551 Optimum utilization of pseudorange and range rate corrections by SATPS receiver |
| 12/28/1999 | US6009118 Parallel correlator for a spread spectrum receiver |
| 12/28/1999 | US6007372 GPS power/data cable system |
| 12/28/1999 | CA2021975C Method of receiving pulses of the m.l.s. type and system for implementing this method |
| 12/23/1999 | WO1999066649A1 System and method for narrowing the range of frequency uncertainty of a doppler shifted signal |
| 12/23/1999 | WO1999066342A1 Apparatus and methods for position computation based on broadcast initialization data |
| 12/23/1999 | CA2335136A1 System and method for narrowing the range of frequency uncertainty of a doppler shifted signal |
| 12/22/1999 | EP0965856A1 Method and apparatus for the deception of satellite navigation |
| 12/22/1999 | EP0879422B1 Signal processing system |
| 12/21/1999 | US6006158 Airport guidance and safety system incorporating lighting control using GNSS compatible methods |
| 12/21/1999 | US6005517 Test vehicle tracking system |
| 12/21/1999 | US6005514 Method for attitude determination using GPS carrier phase measurements from nonaligned antennas |
| 12/16/1999 | WO1999064894A2 Novel system and method for assisting impaired person in swimming |
| 12/15/1999 | CN1238868A Method and apparatus for precision geolocation |
| 12/15/1999 | CN1238837A Ambiguity resolution for ambiguous position solutions using satellite beams |
| 12/14/1999 | US6002708 Spread spectrum localizers |
| 12/14/1999 | US6002363 Combined GPS positioning system and communications system utilizing shared circuitry |
| 12/14/1999 | US6002361 Direct integrated approach to multipath signal identification |
| 12/09/1999 | WO1999063360A2 Distance tracking device using global positioning system signals |
| 12/09/1999 | WO1999063358A1 A method and device for creating a network positioning system (nps) |
| 12/08/1999 | EP0961937A1 Determining angle of arrival of a signal |
| 12/07/1999 | US5999795 RF GPS long cable driver |
| 12/07/1999 | US5999296 Optical head of optical beacon |
| 12/07/1999 | US5999131 Wireless geolocation system |
| 12/07/1999 | US5999126 Position measuring apparatus, position measuring method, navigation apparatus, navigation method, information service method, automotive vehicle, and audio information transmitting and receiving method |
| 12/07/1999 | US5999125 Method and apparatus for a global positioning data service |
| 12/02/1999 | WO1999061933A2 Airborne gps guidance system for defeating multiple jammers |
| 12/01/1999 | EP0960548A2 Locating method and arrangement |
| 12/01/1999 | EP0960473A1 Signal analog processing circuit for satellite positioning receiver |
| 11/30/1999 | US5995888 Apparatus and method responsive to the on-board measuring of haulage parameters of a vehicle |
| 11/30/1999 | US5995556 Front end for GPS receivers |
| 11/30/1999 | US5995046 Radio geo-location system with advanced first received wavefront arrival determination |
| 11/30/1999 | US5995044 Method and apparatus for characterizing multipath interference in circularly polarized signals |
| 11/30/1999 | US5995042 Spoofer detection power management for GPS receivers |
| 11/30/1999 | US5995040 Global space radiopositioning and radionavigation system, beacon and receiver used in this system |
| 11/24/1999 | EP0958530A1 Method and apparatus for satellite positioning system based time measurement |
| 11/24/1999 | EP0796437B1 Dual frequency global positioning system |
| 11/24/1999 | CN1235915A Vehicle number collector and collecting method for work station point |
| 11/23/1999 | US5991691 System and method for determining high accuracy relative position solutions between two moving platforms |
| 11/23/1999 | US5991454 Data compression for TDOA/DD location system |
| 11/23/1999 | US5990831 FFT implementation of digital antenna arry processing in GNSS receivers |
| 11/23/1999 | US5990826 Interbuilding and urban canyon extension solution for global positioning systems |
| 11/18/1999 | WO1999050685A3 Electronic navigation apparatus |
| 11/16/1999 | US5987084 Method and apparatus for correction of GPS carrier phase measurement |
| 11/16/1999 | US5987059 Method for Doppler-replica harmonic avoidance |
| 11/16/1999 | US5986603 Geometric utilization of exact solutions of the pseudorange equations |
| 11/11/1999 | WO1999057929A1 Gsm cellular telephone and gps receiver combination |
| 11/11/1999 | WO1999057576A1 Method and apparatus for operating a satellite positioning system receiver |
| 11/11/1999 | WO1999057575A2 Method and system for using altitude information in a satellite positioning system |
| 11/11/1999 | WO1999057573A1 Method and apparatus for signal processing in a satellite positioning system |
| 11/11/1999 | WO1999057572A1 Method and apparatus for characterizing multipath interference in circularly polarized signals |
| 11/10/1999 | EP0954773A1 Method and device for docking an autonomous mobile unit |
| 11/09/1999 | US5983160 Increase jamming immunity by optimizing processing gain for GPS/INS systems |
| 11/09/1999 | US5982897 Selective denial of encrypted high precision data by indirect keying |
| 11/09/1999 | US5982811 Method for efficient sampling in a correlator |
| 11/09/1999 | US5982324 Combining GPS with TOA/TDOA of cellular signals to locate terminal |
| 11/09/1999 | US5982323 Satellite navigation system |
| 11/04/1999 | WO1999056413A1 Absolute time synchronization for mobile positioning in a cellular communications system |
| 11/04/1999 | WO1999056146A1 Method and apparatus for the detection, by means of ultrasonic pulses, of the coordinates of points of objects with respect to a reference system |
| 11/04/1999 | WO1999056145A1 Satellite positioning reference system and method |
| 11/04/1999 | WO1999056144A1 Method and apparatus for providing location-based information via a computer network |
| 11/04/1999 | WO1999056143A1 Distributed satellite position system processing and application network |
| 11/04/1999 | CA2330280A1 Absolute time synchronization for mobile positioning in a cellular communications system |
| 11/03/1999 | EP0830566A4 Light beam range finder |
| 11/02/1999 | US5977913 Method and apparatus for tracking and locating personnel |
| 11/02/1999 | US5977908 Handheld surveying device and method |
| 10/28/1999 | WO1999054753A1 System and method for provisioning assistance global positioning system information to a mobile station |
| 10/27/1999 | EP0952674A2 Reception control system for automobiles |
| 10/27/1999 | EP0951697A1 Motion analysis system |